And edwin



Patented Oet. l0, 1882.

I HMRI I L .IRKR V., l I D I m, /J\ II- UU N H. v M m ..m..xt|2 I IHIL/G. w N InInuII I I (No Model.)

R. E. M. SCHUBERT & E. T. GARSWELL.

LAMBAD LOGOMOTIVE HEADLIGHT. No. 265,707.

XilveLn-or fm fg UNITED STATES ROBERT E. M. SCHUBERT, OF PHILADELPHIA,PENNSYLVANIA, AND EDWIN T. OARSWELL, OF WILMINGTON, DELAWARE.

LAMP AND LOCOMOTIVE HEAD-LIGHT.

SPECIFICATION forming part of Letters Patent No. 265,707, dated October10, 188.2.

Application filed May 3, 1882. (No model.)

To all whom it may concern:

Be it known that we, ROBERT E. M. SCHU- BERT, of Philadelphia,Pennsylvania, and ED- WIN T. UARSWELL, of Wilmington, Delaware,

haveinvented certain new and useful Improvements in Lamps and LocomotiveHead-Lights, ot' which' the following is a full, clear, and exactdescription, reference being had to the anneXed drawing, making parthereof.

1o The nat-ure of our invention will be fully set forth in the followingdescription and claims.

The drawing represents a vertical sectional view of the lamp, lens,reflector, and the stemvalve, showing the oil-feed pipe andoil-reservoir in elevation.

A is a movable lens in front of the light; B, a hinge for directing therays of light through the lens upward or downward, which is accomplishedby inclining the lexis backward or 2o forward; B', acurved support orbracket to sustain thelens; C, a hinge to enable itto be moved from sideto side to throw the rays ot'light sidewise. D is a glass or transparentshield or in- 'verted cup enveloping the burner, having an z5 upperopening for the 1iame,which, while serving the usual purpose of shapingor giving form to the flame, also permits the rays ot light to passthrough it, whereby no shadow is cast. The metal shields of the sameform are old,

3o but are objectionable because of their opaqueness. E is a stem-valve,connected by means oi' a short pipe with the reservoir I, to regulateand control the flow of oil from the reservoir I through the tube E tothe wick-cham- 3 5 ber F; G, the air-supply openings for sustainingcombustion; H, the ordinary head-light rellector. I is theoil-reservoir, having a screwcap, J, in the bottom of a funnel-neck, K.L

. is the lamp; M, the llame of the same. N are 4o slides round theopenings Gr, which can be made to envelop the same by pushing them backmore or less, the amount of air passing through openings G beingregulated thereby. O O' are wick-tubes formed of concentricdouble-walled 4 5 cylinders. The cylinders contain the concentrictubular wicks, and between these cylinders, and in the interior of thesmallest one, are air-spaces P P, which communicate with the openings G,for the purpose of supplying air 5o to the flame M. Q is thelamp-chimney. It

PATENT OFFICE.

l is a thumb-wheel furnished with the ordinary ratchet or spur wheels toturn the wicks. The outer concentric tube, O', and its wick aie piercedwith a long vertical slot near the bottom, to permit the passage throughsaid outer tube or cylinder of the shaft of the wick-elevator orspur-wheel B, bythe turning of which the interior wick is turned up.

For in creased power we have shown a double lens, A A, although one lensmay be used, if 6o desired. The joint C enables the lens to be turnedfrom side to side, so as specially to illuminate one 0r the other sideof the track, though thisjoint will be seldom used. We find thatthejoint B is all that is absolutely necessary, 'as by throwing the lensslightly forward, so that the ray of light is deected until it strikesthe ground closely in front of the engine, it will he broad enough whereit strikes the track to illuminate both rails thereof, so that the en-7o gineer is thereby enabled to judge or to see exactly what distance hehas passed a switch, and obviates the necessity of his going back aconsiderable distance to make sure that he has passed it sufficiently toenable it to be closed 7 5 or changed, which he would have to do if hewere compelled to back until the rellection from the head-light struckthe switch. Thus considerable valuable time is by our device saved inmaking up and shifting trains and cars and 8o in changing from one trackto another.

The concentric tubular wicks, each having a full supply of air, enableus to produce a solid intense white light, having equal illuminatingpower or capacity on every side because of its 8 5 roundness.

We construct the transparent shield D of glass. It is of the ordinaryform of burnershields, and fullls its ofce in the same way as othershields, but from its transparency 9o does not intercept the rays oflight or cast a shadow.

We have made thejoint B in the form of a curved rack and bolt, as shown,for the purpose of locking the lens at any desired angle. The joint Cmay be constructed in the same manner, as desired.

What we claim as new is- 1. In combination with a stationary headlightbox and lamp L, the lens A, supported ou roo a standard or bracket, B,and provided with a hinge, B, which permits the lens to be detlectcd soas to throw its face downward, or vice versa, whereby the rays of 1i ghtfrom the lamp may be thrown downward or upward in their passage throughthe lens, substantially as described.

2. In combination with a lamp, L, the lens A, supported on a standard orbracket, B, and provided with a hinge, C, adapted to permit the bracketof the lens to be moved around laterally in either direction, wherebythe rays of light in their passage through the lens A can be thrown toeither side,'substantially as described.

3. In combination with a 1an1p,'L, the lens A, supported cn a standardor bracket, B, andprovided with a hinge, B, for the purposes described,and the stationary reflector H in the head-light box, substantially asset forth.

ROBERT E. M. SCHUBERT. EDWIN T. CARSWELL.

Witnesses:

GEORGE E. BUCKLEY, WM. H. CARSON.

